A one man company consulting another would apply the software for commercial purposes. Commercial use is not comtemplated by the license. The one man company should contact me and buy a different license.

I am not sure about: >"This is my project, you can use it if you want. If you want a patch added, pay me. If you want support, pay me."

Because if you are an experimenter asking for a patch I could be also interested in, that could help the project in any way, I could consider doing it for free as part of effort required to develop the project.